Home / 142,484,065.16-196,628,388.44-77,293,969.16

Finding the Fourth Proportional to 142,484,065.16, 196,628,388.44 and 77,293,969.16

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Solution

The fourth proportional to 142,484,065.16, 196,628,388.44 and 77,293,969.16 is: 106,665,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,484,065.16 : 196,628,388.44 = 77,293,969.16 : x
  2. Step 2: Convert to fraction form
    142,484,065.16/196,628,388.44 = 77,293,969.16/x
  3. Step 3: Cross multiply
    142,484,065.16x = 196,628,388.44 × 77,293,969.16
  4. Step 4: Simplify right side
    142,484,065.16x = 15,198,188,590,692,250
  5. Step 5: Solve for x
    x = 15,198,188,590,692,250/142,484,065.16
  6. Step 6: Final answer
    x = 106,665,882.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.